QQuestion
Question
Which of the following best describes a confounding variable?
A. A second independent variable
B. A second dependent variable
C. An additional variable that can influence the dependent and independent variables being investigated
D. A control variable used in the study design to establish a causal relationship between the independent and dependent variables
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Answer
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Step 1I'll solve this problem step by step, focusing on the definition of a confounding variable.
Step 2: Understand the Concept of Variables in Research
A confounding variable is an important concept in research methodology that can potentially impact the relationship between the independent and dependent variables being studied.
Final Answer
An additional variable that can influence the dependent and independent variables being investigated. Explanation: A confounding variable is a third variable that introduces an alternative explanation for the observed relationship between the independent and dependent variables. It can create a false impression of a causal relationship or mask the true relationship between the primary variables being studied. Example: In a study examining the relationship between coffee consumption and heart disease, age could be a confounding variable. Both coffee consumption and heart disease risk can be influenced by age, potentially creating a misleading correlation if age is not controlled for in the research design.
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